22116087 has 24 divisors (see below), whose sum is σ = 38098944. Its totient is φ = 12087504.

The previous prime is 22116079. The next prime is 22116109. The reversal of 22116087 is 78061122.

It is not a de Polignac number, because 22116087 - 2³ = 22116079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22116087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22116187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6183 + ... + 9080.

It is an arithmetic number, because the mean of its divisors is an integer number (1587456).

Almost surely, 2^22116087 is an apocalyptic number.

22116087 is a deficient number, since it is larger than the sum of its proper divisors (15982857).

22116087 is a wasteful number, since it uses less digits than its factorization.

22116087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15299 (or 15296 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 22116087 is about 4702.7743939083. The cubic root of 22116087 is about 280.6959177284.

The spelling of 22116087 in words is "twenty-two million, one hundred sixteen thousand, eighty-seven".